Product Description

Kit Class: PremiumWarranty: Lifetime

Convert Your Air Suspension To A Coil Spring Suspension. End Your Air Suspension Problems Forever...

Strutmasters 1998-2004 Cadillac Seville Rear Air Shock To Coil Spring Shock Conversion Kit is the perfect solution to your air suspension
problems. Designed to be very affordable, you can convert your air suspension to use standard struts and coil springs for less than the price of
replacing one electronic strut

Our Strutmasters Conversion Kit is only $367.00(plus s&h)!!!!

How do I know if my 1998-2004 Cadillac Seville Air Suspension is failing?

If the 1998-2004 Cadillac Seville has an improper ride height, the air suspension system may be leaking or going bad. Early detection of a failing air suspension system is the key to maintaining the vehicle's overall health. Look for a sudden height variance between different sides of the Seville. Typically there will be one inflated end, one sagging end, a “squatting” appearance, or a shifting lean from side to side. Another classic symptom is an improperly working air compressor. If the air compressor runs too often or stops working, a bad suspension has caused it to wear out. The suspension needs to be fixed if there is an illuminated suspension warning light on the dashboard.

Why choose the Conversion Kit over replacing the air suspension system on your 1998-2004 Cadillac Seville?

Strutmasters' air to non-air suspension conversion kit is an affordable direct replacement solution to a failed or leaking air suspension system. Without sacrificing quality, the kit replaces the faulty air ride components for good. Made in the USA, the kit includes two rear shocks, two rear Eibach springs, new mounts, and all necessary hardware. The kit costs considerably less money than dealership direct replacement and individual part replacement. It is installed in as little as one hour per wheel thanks to easy-to-follow instructions and online installation videos. For further assistance, ASE certified experts offer technical support over the phone. Customers' investment is protected by Strutmasters' Lifetime Limited Warranty. It's no wonder that the majority of Seville owners make “the switch” from air to non-air suspension using this coilover conversion kit.

5 Great Reasons To Act Now

What kind of suspension does my 1998-2004 Cadillac Seville have?

The 1998-2004 Cadillac Seville is built with the following suspension components:

1998-2004 Cadillac Seville Electronic Struts (x2)- a type of shock absorber; has metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle. The Cadillac Deville’s struts, while having coil-springs, use an electronic signal to stiffen or soften the dampening of the strut.

1998-2004 Cadillac Seville Shock Absorbers (x2)- a metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle shock absorbers.

1998-2004 Cadillac Seville Coil Springs (x2)- Coil springs hold the vehicle up but be careful, they are rated for and designed to work with the rest of the suspension system, so when you change air shocks to passive shocks, then you will need a different rated coil spring that works well with the new type of shocks.

1998-2004 Cadillac Seville Air Lines- tubes that run from a compressor (air suspension) to the air struts which carry pressurized air to the air bags components in order to adjust the height of the vehicle, respectively.

1998-2004 Cadillac Seville Solenoids (x4)- usually L-shaped, these plastic components connect the electrical connection and lines of suspension components to the suspension control module on vehicles with active suspension. The solenoid regulates the air pressure for each air spring. Solenoids start to leak as they wear out causing the vehicle to sag or to lean. This will cause the ride height sensor to send a signal to activate the compressor in an attempt to inflate the air suspension and level out the vehicle. This excessive work load will eventually lead to total failure of the compressor.

1998-2004 Cadillac Seville Compressor- creates/sends pressurized to active suspension components. When the air suspension starts leaking, the compressor/pump starts working harder to try to keep the system inflated. By the time air suspension leaks down completely, sitting the vehicle on its tires, the compressor will either have failed or be well on its way to full failure. Buying replacement struts and taking the time to install them only to find out the compressor still needs to be replaced can be very frustrating, time-consuming, and expensive.

1998-2004 Cadillac Seville Dryer Assembly- used to keep moisture out of air lines and air springs in order to prevent freezing and internal cracking of these parts. Once air suspension starts leaking, moisture will build-up throughout the air system. Moisture damages the air suspension from the inside. The dryer will need to be replaced in order to eliminate the moisture and prevent any further damage.

1998-2004 Cadillac Seville Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicle’s correct ride height.

1998-2004 Cadillac Seville O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

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Suspension Kits Reviews

I ordered the rear strut kit to replace the factory air shocks on my son’s 2003 Cadillac Seville. I was somewhat reluctant to do so after reading a previous post that said they raised the car height on his car….. they didn’t though. I am totally happy with my purchase. The total time to replace the rear shocks was about 3-1/2 hours and most of the time was spent getting the old ones off!! (Someone walked away with our spring compressor, so we ended up torching the old springs off.)

Satisfaction Reasons; First, the price for this conversion kit was about 13% of the price of ordering the original air shocks. I saved thousands!! Second, the rear bumper height only raised 3/4″ (not 2-3″ like I’ve read by some posters) which is probably where it should have been if the old shocks were still in good shape. Third, I have noticed no change in the ride of the car. I’ll post before & after pictures.

Again, I am totally satisfied and if I had to do it all over again, I would buy the same conversion kit from Strutmasters……